ArticleIEEE transactions on bio-medical engineering2021
An Instrumented Cochlea Model for the Evaluation of Cochlear Implant Electrical Stimulus Spread.
Article in IEEE transactions on bio-medical engineering, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Three-dimensional printing and cochlear implantation: a systematic review.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026Review
- 3D-Printed Electroanatomic Twins of Cadaveric Cochleae: A Platform for Cochlear Implant Testing.Laryngoscope investigative otolaryngology · 2026Article
- A deep learning framework for understanding cochlear implants.bioRxiv : the preprint server for biology · 2025Article
- Electrophysiological and Behavioral Programming Parameters in Patients with Facial Nerve Stimulation Post-Cochlear Implantation.The journal of international advanced otology · 2025Article
- Investigating the Effect of Blurring and Focusing Current in Cochlear Implant Users with the Panoramic ECAP Method.Journal of the Association for Research in Otolaryngology : JARO · 2024Article
- A Scalable, Programmable Neural Stimulator for Enhancing Generalizability in Neural Interface Applications.Biosensors · 2024Article
- Detecting and managing partial shorts in Cochlear implants: A validation of scalp surface potential testing.Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery · 2022Article
- Intra-Cochlear Current Spread Correlates with Speech Perception in Experienced Adult Cochlear Implant Users.Journal of clinical medicine · 2021Article
- 3D printed biomimetic cochleae and machine learning co-modelling provides clinical informatics for cochlear implant patients.Nature communications · 2021Article
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Authors and funding
11 authors.
Funding
Abstract
Cochlear implants use electrical stimulation of the auditory nerve to restore the sensation of hearing to deaf people. Unfortunately, the stimulation current spreads extensively within the cochlea, resulting in "blurring" of the signal, and hearing that is far from normal. Current spread can be indirectly measured using the implant electrodes for both stimulating and sensing, but this provides incomplete information near the stimulating electrode due to electrode-electrolyte interface effects. Here, we present a 3D-printed "unwrapped" physical cochlea model with integrated sensing wires. We integrate resistors into the walls of the model to simulate current spread through the cochlear bony wall, and "tune" these resistances by calibration with an in-vivo electrical measurement from a cochlear implant patient. We then use this model to compare electrical current spread under different stimulation modes including monopolar, bipolar and tripolar configurations. Importantly, a trade-off is observed between stimulation amplitude and current focusing among different stimulation modes. By combining different stimulation modes and changing intracochlear current sinking configurations in the model, we explore this trade-off between stimulation amplitude and focusing further. These results will inform clinical strategies for use in delivering speech signals to cochlear implant patients.
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